ATT 1 Mosquito Fire Trails Project Description.pdf

Disaster Relief Project Description- Mosquito Fire affected portions of Loop 6 and Western States Trails on American River Ranger District

Project Intent- Cutting back understory postfire vegetative regrowth and burned residual understory along trail corridors that are impeding user sight lines posing safety concerns along narrow precipitous sections of popular canyon trails.

Both Loop 6 (11E44) and Western States Trail (16E10) are used annually in the spring by permitted competitive running events.

Work Locations

1. Loop 6 (11E44) o Mile 00—0.4- .40 miles- Start of Loop 6 to FR 88-11 o Mile .9—6.97- 6.07 miles- FR 88-11 to Junction with Western States Trail o Mile 6.97—10- 3.03 miles- Junction with Western States Trail to Devils Thumb o Mile 10—12.05- 2.05 miles- Devils Thumb to Deadwood Road o Mile 12.05—14.84- 2.79 miles- Deadwood Road to FR 88-11-08 o Mile 14.85—15.41- .57 miles- FR 88-11-08 to end of Loop 6

2. Western States Trail (16E10) o Mile 2.75—5.22- 2.47 miles-Michigan Bluff to El Dorado Bridge o Mile 5.22—8.6- 3.38 miles-El Dorado Bridge to Deadwood Cemetery o Mile 8.6—10.4-1.8 miles-Deadwood Cemetery to Devils Thumb o Mile 10.4—12.07- 1.67 miles- Devils Thumb to Swinging Bridge

Scope of Work

Intent of contract will be to brush trails to standard for motorcycle, hiker, equestrian use along Western States and Loop 6 Trails. Both trails are narrow steep canyon trails with a trail width of 18- 24 inches.

Work consists of brushing/cutting back vegetation along 14.91 miles of Loop 6 (11E44) and 9.32 miles (1-mile equals both sides of the trail) along the Western States (16E10) Trails on the American River Ranger District in Placer County California. Total distance is 24.23 miles. Trail locations are within Tahoe National Forest administered lands, nearest town is Foresthill, Michigan Bluff California. See attached maps for specific locations to be brushed.

Trail corridor shall be cut back is 6 feet total (3 feet both sides of trail) and 8 feet in height. Some Hazard tree mitigation may be requested and will be part of the contract package. Cut brush and stubs will be no taller than 2 inches off the ground and tree stumps will be flush with the ground.

Trail tread shall be left open and free from debris. This work includes cutting back both sides of trail within the 2022 Mosquito Fire burn perimeter. Care must be taken along Western States Trail (WST) where historic rock retaining walls exist, sections of WST are on the National Register of Historic Places.

Existing Condition

Post fire conditions from 2022 Mosquito Fire along these trail segments present an overgrown trail prism along narrow precipitous trails, existing volunteer and paid Forest Service crews are having difficulty maintaining these sections annually. These segments are within world renowned special use permitted events such as Western States 100-mile Endurance Run, Tevis Cup 100 mile Equestrian Ride, and Canyons 100 mile Run, event participants and recreating public are having trouble locating these trails, overgrown trail prism pose public safety concerns due to not being able to see footing along these rugged canyon trails.

Specifications

Contract Time:

Work may begin as conditions allow after spring thaw to prevent rutting and damage to the trail and is to be completed by June 20, 2026. Conditions typically allow for work to begin February. Many of these trails segment can be accessed during the winter with occasional short duration storms.

Contractor Furnished Equipment:

Contractor is required to furnish all labor, equipment, and supplies necessary to accomplish the work.

Contractor is responsible for:

Any repairs to large ruts, holes, or otherwise unwanted damage to trail tread (spills, oil leaks, rutting).

Have required safety equipment (hand tools, spark arrestors on chainsaws or brushing equipment, fire extinguisher) and signed Fire Plan. Contractor shall always abide by Fire Plan that references Project Activity Levels.

Equipment must be in good operating condition and contractor will assume all costs of maintenance and operation of equipment furnished by contractor.

Inspection and Acceptance:

Equipment should be free of seeds, soil, vegetative matter, and other debris that could contain or hold seeds at the beginning of initial operations, before equipment is brought onto the National Forest. Equipment may need to be cleaned prior to being moved from one trail segment to another to prevent the spread of invasive weeds. USFS will communicate and coordinate with contractor if cleaning of equipment is necessary.

Contractor is required to coordinate with the COR on posting appropriate warning signs along the trail, while work is being conducted. Work is to be conducted Monday-Friday with no brushing on holidays or special use permitted events due to increased use from public, unless authorized by

COR.

Inspections of work may be conducted at any time after the start of work. The COR will provide the contractor with routine feedback on the work being done so they contractor will have sufficient time to take any corrective actions. The contractor shall take prompt corrective action for any deficiencies or deviations that may occur under this contract.

The Contractor shall notify the COR or inspector when areas are completed and ready for final inspection. Upon notification, a mutually agreed date for inspection will be arranged.